Evidence map›Paper›PMID 21569391›Full record

ArticleBMC systems biology2011

Global network analysis of drug tolerance, mode of action and virulence in methicillin-resistant S. aureus.

Ian M Overton, Shirley Graham, Katherine A Gould, Jason Hinds, Catherine H Botting, Sally Shirran, Geoffrey J Barton, Peter J Coote

Open access · diamondAbstract read
In one paragraph

Article in BMC systems biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.2field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review
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  8. Frontiers in microbiology · 2020
    Article
  9. FOXO Transcriptional Factors and Long-Term Living.Oxidative medicine and cellular longevity · 2017
    Review
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  17. Antimicrobial Peptides as Anti-Infectives against Staphylococcus epidermidis.Medical principles and practice : international journal of the Kuwait University, Health Science Centre
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 1 country.

Ian M OvertonBiomedical Systems Analysis, MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Crewe Road, Edinburgh EH4 2XU, UK. ian.overton@hgu.mrc.ac.uk
Shirley Graham
Katherine A Gould
Jason Hinds
Catherine H Botting
Sally Shirran
Geoffrey J Barton
Peter J Coote
University of St Andrews · GBSt George's, University of London · GBUniversity of Dundee · GBWestern General Hospital · GB

Funding

Biotechnology and Biological Sciences Research Council BBS/B/14426Biotechnology and Biological Sciences Research Council BBS/B/14434Medical Research CouncilWellcome Trust 086547
6 · The paper itself

Abstract

backgroundStaphylococcus aureus is a major human pathogen and strains resistant to existing treatments continue to emerge. Development of novel treatments is therefore important. Antimicrobial peptides represent a source of potential novel antibiotics to combat resistant bacteria such as Methicillin-Resistant Staphylococcus aureus (MRSA). A promising antimicrobial peptide is ranalexin, which has potent activity against Gram-positive bacteria, and particularly S. aureus. Understanding mode of action is a key component of drug discovery and network biology approaches enable a global, integrated view of microbial physiology, including mechanisms of antibiotic killing. We developed a systems-wide functional association network approach to integrate proteome and transcriptome profiles, enabling study of drug resistance and mode of action.

resultsThe functional association network was constructed by Bayesian logistic regression, providing a framework for identification of antimicrobial peptide (ranalexin) response modules from S. aureus MRSA-252 transcriptome and proteome profiling. These signatures of ranalexin treatment revealed multiple killing mechanisms, including cell wall activity. Cell wall effects were supported by gene disruption and osmotic fragility experiments. Furthermore, twenty-two novel virulence factors were inferred, while the VraRS two-component system and PhoU-mediated persister formation were implicated in MRSA tolerance to cationic antimicrobial peptides.

conclusionsThis work demonstrates a powerful integrative approach to study drug resistance and mode of action. Our findings are informative to the development of novel therapeutic strategies against Staphylococcus aureus and particularly MRSA.

Indexed as

Gene Expression ProfilingAnti-Infective AgentsBayes TheoremCell WallComputational BiologyGene Expression Regulation, BacterialHumansMethicillin ResistanceMethicillin-Resistant Staphylococcus aureusMicrobial Sensitivity TestsPeptides, CyclicRegression AnalysisStaphylococcus aureusSystems BiologyVirulenceVirulence FactorsAnti-Infective AgentsPeptides, CyclicranalexinVirulence Factors

Identifiers

PMID21569391
PMCPMC3123200
OpenAlexW2143491155

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.